Music-leaf turner.



D. F. REYNOLDS.

MUSIC LEAF TURNER.

APPLICATION HLED JANA le, 191e.

DEO FOREST REYNOLDS, 0F GATO TOWNSHEP, MONTCALJI COUNTS?, EHOHGAN.

MU'SC-LEAF TURNER.

Application filed January 16, 1918.

To all whom it may concern.

Be it known that I, Dno FOREST REYNOLDS, a citizen of the United States, residing at Cato township, in the county of Montcalm and State of Michigan, have invented new and useful Improvements in Music-Leaf Turners, of which the following is a specification.

The present invention relates to music-leale turners; and its object is to provide an improved device whereby the leaves of music may be readily turned by the performer Aand whereby the music leaves may be turned back again; and the vinvention consists in certain mechanisms and combinations of parts hereinafter described and particularly pointed out in the claims.

This object is attained by, and the invention finds preferable embodiment in, the structure hereinafter described and illustrated by the accompanying drawings, in which Figure 1 is a view in perspective of a music stand and my music-leaf turner;

Fig. 2 is ay top plan view of the leatturner, showing also means for operating the same;

Fig. 3 is a vertical section of the leatturner taken on planes corresponding to line 3 3 of Fig. 2;

Fig. at is a horizontal section ot the same taken on planes corresponding to line f-Jl of Fig. 3;

Fig. 5 is a vertical section ot certain parts thereof taken on a plane corresponding to linea- 5 of Fig. 3;

Fig. 6 is a fragmentary detail view show; ing supporting means for the casing;

Fig. 7 is a plan view showing the post and rollers thereon on which the leaf turning arms swing;

Fig. 8 is a side view of the same with portions of said arms shown in section;

Fig. 9 shows a valve for controlling the air for opera-ting the device;

Fig. 10 is a sectional View of the same taken on a plane corresponding to line 10-10 of Fig. 9;

Fig. 11 shows a modified construction of the air supplying means; and

Fig. 12 shows a music-leaf holding clip.

in the embodiment of the invention chosen for illustration by the drawings and for detailed description in the body of this speciiication. a rotatable member 1 is threadedly mounted, preferably internally as shown Specication of Letters Patent.

ltatented Dec. il?, i.

Serial No. 212,052.

and on the fixed threaded post "2. A. plurality of swingable arms 3 are pivotally mounted concentrcally with the member l, as by means of their arcuate openings 4 therethrough7 registering with each other and through which pass the xed posts 5, each of which is provided with rollers 6, turning thereon and disposed end to end, and severally engaging in the openings 4f ot' the arms respectively, there being on each post a separate roller for each arm, so that the swinging or one arm may not tend to swing any other.

Dogs 7 pivotally mounted at 8 on the rotatable member, and as shown on opposite sides thereof, have fingers 9 adapted in the turning movement ot' said member to swing or turn the arms severally, approximately half a revolution, by engaging with said arms lugs 10. `While the rotatable member turns approximately halt a revolution, it moves up or down (depending on the direction of turning) on the threaded post-a distance equal to the vertical thickness of one ot the arms or its said lug. whereby each such halt revolution made by said member causes the ringer to engage with the succeedingarms lug. rFliese arms, being provided with suitable clips 11, slidable on the arms7 and as ot the form shown in Fig. 12, and which engage the several music leaves 12, turn the leaves with them. itt-er each arm is turned, the linger releases it by being raised out ot' engagement with its lug. This is elected by the inclined plane 153, disposed in the path of the portions 15 of the dogs, so that as the rotatable member turns, after swinging an arm to proper position, the portion 15 of the dog rides up and over the inclined plane, thus lifting the finger from its engagement with the lug. Another inclined plane 14 is likewise disposed in the path o3? said portions ot the dogs, but is oppositely inclined, so that when the music leaves are to be reversed or turned back by rotating 'the member 1 in the opposite direction, the fingers are raised by said second inclined plane. These planes are pivotally mounted at 1G, their lower parts 17 being heavier thus turning the planes on their pivots to the position shown in Fig. 5 in which position they are stopped by suitable stops 18. .twill be seen that in the rotation of the member 1 in one direction the portions 15 oit the dogs merely litt or turn one of the planes on its pivot and ride up on the other; but, when the rotary movement is reversed, the portions 15 ride up on the former and lift the latter.

In Figs. 1 and 3, the yposition of the parts is shown in the middle of the cycle of operationafter the leaves have been turned to the left hand and before they are returned to the right hand.

The means provided for intermittently rotating the member 1 to turn the leaves severally, comprisesa gear 19 splined at 2O on said member 1 and supported on the fixed member 21. This gear is rotated approximately half a revolution in one direction by a movable rack 22 and in the reverse direction by a similar rack 23. These racks' engage the gear on its opposite sides as shown in Fig. 2 in their operative movement. Guides 24 and 25, each have two portions 26 and 27 in which are guided the pins 28 of the racks, the portions 26 thus guiding the racks in their operative movement and the portions 27 guiding them in their return movement. Means are provided for shifting the pins from one said portion to the other at the end of either movement, as the springs 29 and 30 located adjacent the ends of said portions of the guides. The racks are respectively connected to pistons 31, 32 in air cylinders 33, 34 pivotally mounted at 35 to permit the guided movements of the racks. Air may be supplied to the cylinders through suitable independent communications or tubes 36` and 37. The air may be forced through such tubes to the cylinders by suitable means, as by the. hand-operated compressible resilient bulb 38 shown in Fig. 11, or preferably by the bellows 39 operated by the pedals 40 or 41. These pedals have extensions 42, 43 overhanging the bellows and adapted to be pressed thereon by the foot, and are also operatively connected to the valves 44, 45 respectively which control the supply of air to the cylinders, `so that the pressing of one pedal operates the bellows and opens the valve to one cylinder, while pressing the other pedal also operates the bellows but opens the valve to the other cylinder.

A suitable casing 46 incloses the principal operative parts and may be held by the set screw 47 on the post 48 fixed on a suitable music stand or rack 49, or on a piano. Suitable springs 50 serve to return the racks to their initial positions.

The invention being intended to be deiined by the claims, is'not to be limited to or by details of construction shown or described.

I claim:

1. In a device of the characterv described; a threaded post; a rotatable member internally threaded on the post; swingable arms adapted to turn leaves; a finger pivotally mounted on said rotatable member and .a threaded Lassie? adapted to severally engage the arms to swing the same; means actuating the finger to turn it on its pivot out of vengagement with said arms.

2. in a device of the character described;

post.; a rotatable member internally threaded on the post; swingable arms pivotally post and adapted to turn leaves; a finger pivotally mounted on said rotatable member mounted concentrically with theA and adapted to severally engage the arms to l swing the same; means actuating the linger to turn it on its with said arms.

3. ln a device of the character described; a threadedly mounted rotatable member; swingable arms adapted to turn leaves; a dog pivotally mounted on said member and having a linger adapted to severally engage the arms to swing the same; an inclined plane disposed in the path ot the dog and adapted tomove the linger out of its said engagement.

In a device ot' the character described;

a threadedly mounted rotatable member; swingable arms adapted to turn leaves; a dog pivotally mounted on said member and having a inger'adapted to severally engage the arms to swing the same; a pivotally mounted inclined plane disposed in the path of the dog and adapted to move the tinger out of its said engagement.

5. In a device of the character described; a threadedly mounted rotatable member; swingable arms adaptedv to turn leaves; a dog pivotally mounted on said member and having a finger adapted to severally engage the arms to swing the same; planes oppositely inclined and disposed in the path of the dog, one plane being adapted to move the finger out of its said engagement in the rotary movement of said member in one direction, and the other plane being adapted to thus move the finger in the rotary movement of said member in the opposite direction.

6. in a device of the character described; a threadedly mounted rotatable member; swingable arms adapted to turn leaves; a dog pivotally mounted on said member and aving a finger adapted to severally engage the arms to swing the same; pivotally mounted planes oppositely inclined and disposed in the path of the' dog, lone plane being adapted to move the finger out of its said engagement in the rotary movement of said member in one direction, and the other plane being adapted to thus move the finger in the rotary movement of said member in the opposite direction.

7.. in a. device of the a threadedly mounted rotatable member; swingable arms adapted to turn leaves; and having registering arcuate openings therethrough; posts extending through said openings; rollers turning on said posts and dispivot outl of engagement maaier posed end to end and engaging severally in the said openings of the arms respectively; a finger mounted on said member and adapted to severally engage the arms to swing the same.

8. ln a. device of the character described; a t-breadedly mounted rotatable member; swingable arms adapted to turn leaves; a ringer mounted on said member and adapted to severally engage the arms to swing the same; a gear carried by said member; a movable rack adapted to operatively engage the gear; means for releasing the rack from said engagement in its return movement.

9. ln a. device of the character described; a threadedly mounted rotatable member; swingable arms adapted to turn leaves; a finger mounted on said member and adapted to severally engage the arms to swing the same; a gear carried by said member; a movable rack adapted to operatively engage the gea-r; a. guide for the rack having two portions in one of which the rack is guided in its operative engagement with the gear and in the other portion is guided in its re turn movement; means for shifting the rack from either said portion to the other.

l0. ln a device of the character described; a threadedly mounted rotatable member; svvingable arms adapted to turn leaves; a finger mounted on said member and adapted to severally engage the arms to swing the same; a gear carried by said member; a movable rack adapted to operatively engage the gear; means for releasing the rack from said engagen'ient in its return movement; a cylinder; a piston in the cylinder connected to the rack; means for supplying air pressure to the interior of the cylinder te operate the piston.

il. in av device et the character described; a threadedly meunted rotatable member; swinggable arms adapted te turn leaves; a nger mounted on said ineinbe" and adapted to severally engage the H is to swing the same; a gear carried by sain member; a pair ot movable raclrs adapted te operatively engage the gear severally and on axially opposite sides thereof; n eens for releasing the c racks freni their sai@` engagement in their return movements.

l2. a device et the character described having a rotatable memberv and parts actuated thereby for turning leaves; a cylinder having a piston adapted te rotate said member; a second cylinder having' a piston adapted to rotate said member in the eppesite direction; a bellows having independent airsupplying communicatiens with the cylinders respectively; valves in said communications; means for operat' the bellows and opening 'the valve to one sa communication and cylinder; independent eans 1fer operating the bellows and ep "ling the valve to the other said communication and cylinder.

ln testimony wher'eoia have hereunto set my hand at Grand 1idapids, Michigan, this 12th day of danuary; 1918. 

